Skylight.



v PATENTBD SEPT.y 15, 190s.

R. LIEBER & G. LAMBERT. SKYLIGHT.

y APPLIOATION FILED AUG. 2. 1902.

N0 MODEL'.

- -Fi gl.

Mgg/Pik l I v UNITED STATES Patented September 15, 1903. A

'PATENT OFFICE.

SKYLIG'HT.

SPECIFICATION formingpart of Letters Patent No. 739,013, dated September 15, 1903.

Y v Application iiled August 2, 1902. Serial No. 118,110. (No model.)

To @ZZ whom it may concern:

Be it known that we, RUDOLPH LIEBER and CARL LAMBERT, both citizens of the German Empire, and residents of Dusseldorf, Ger# many, have invented certain new and useful Improvements in Skylights, of which the following is a specification. f

This invention relates to a skylight or glass roof which is'so constructed that the unequal expansion between the glass and the metal frame will notbe apt to open the joints around the edges of the glass.

In the accompanying drawings, Figure l is a plan of portion of a skylight or glass Vroof embodying our invention and with the caps omitted. Fig. 2 is a longitudinal section on line A B, Fig. l; Fig. 3, a cross-section on line C D, Fig. l; Fig. 4, a cross-section on line E F, Fig. 1.

The panes a of the skylight or roof are provided with upwardly -projecting lianges a along both ends. They are supported upon the base of an inverted T-rail b, that constitutes the frame and .to which they are secured by putty cv or similar material. The web of the frame, together with the iianges a', are covered by a cap d, that projects over the flanges and is connected to the frame by bolt d'. Between the cap d and the upper pane a are interposed packing-strips e, which form tight joints between the cap and the pane. The two lianges a of each pane diverge s0 that the distance between them is greater on top than at the bottom, Fig. l. In -this way the flanges at the upper end of the lower pane will embrace the anges at the lower end of the upper pane to Yform an overlap joint, both sets of lianges being covered bya common cap d, Fig. 4. As the iianges project upwardly, they prevent rain that may creep in lunderneath the cap from owing around the edges ofthe panes. They serve, further, to lock the panes against displacement, owing to unequal expansion between the glass and the metal.

What We claim is- A skylight provided with an upper pane having upwardly-extending flanges, a lower pane having upwardly-extending flanges that embrace the flanges of the upper pane at the joint, a T-shaped frame supporting the panes, a cap embracing the flanges of both the upper and lower panes at the joint, means for securing the cap to the frame, and a packing intermediate the cap and the upper pane, sub-v stantially as specified.

Signed by us at Dusseldorf, Germany, this 12th day of July, 1902.

RUDOLPH LIEBER. CARL LAMBERT.

Witnesses:

WILLIAM EssENwEIN, ERNST ANDR. 

